build.zig: allow run() on non-native target artifacts
build.zig: allow run() on non-native target artifacts

zig-lang/zig,raulgrell/zig,zig-lang/zig,andrewrk/zig,raulgrell/zig,raulgrell/zig,andrewrk/zig,zig-lang/zig,raulgrell/zig,raulgrell/zig